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nata0808 [166]
4 years ago
5

Suppose a patients weighting 104 pounds requires 130 milligrams of medicine what is the weight of patient who requires 278.75 mi

lligrams medicine?
Mathematics
1 answer:
Pachacha [2.7K]4 years ago
5 0

Cross multiplication will help with this! Since someone with 104 pounds is given a specific amount of medicine but another person with unknown pounds but known medicine is given, cross multiplication is helpful.

We can make it into a fraction, say pounds/milligrams

104 lbs/130mg=x (because it is unknown) lb/278.75

Then we can multiply it by crossing both sides.

130x=104(278.75)

130x=28990 Isolate x by dividing by 130

x=223

The person is 223 pounds who needs 278.75 mg of medicine.

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